Binding material and process of making same.



i (J r9405 l r/ COMPOSITIONS, COATING OR PLAS.

Fit-i.

Patented May 9, 1905.

UNITED STATES PATENT OFFICE.

LUDVVIG GROTE,

TO EDWIN PERRY .ENOLAND.

/BINDING MATERIAL AND PROCESS OF MAKING SAME.

OF LONDON, ENGLAND, ASSIGNOR OF T\VO-TH1RDS AND RALPH \YALTOX PERRY, OF LOX )ON.

Application filed October 1, 1904. Serial No. 227,134.

To all whom it may concern:

Be it known that LLUDWIG Gnornenginecr, a subject of the German Emperor, residing at 177 Garrick Villas. Mount Pleasant Road. Tottenham, London, England, have invented certain new and useful Improvements in Binding Material and Processes of Making the Same. of which the following is a specification.

The present invention relates to the manufacture of bindin material for use in the production of mo (L articles or for other purposes, and primarily has for its object the production of a binding material which when combined with the desired filling material has the advantage that same can be made as an insulating material for electrical purposes or fireproof or waterproof and which composition after being molded and pressed into the desired shape or form will not (appreciably) change in volume or form or shape and may be employed for any purpose for which same is or may be applicable.

It is known that the materials hitherto used or attempted to be used for such purposes as insulating bodies for electrical purposes when made of glass or porcelain and other kinds of clays are attended by numerous disadvantages. For example, the shrinking and the contraction of the articles while being baked or treated in the process of manufacture (in the kiln, &c.) involves difiiculties, and consequently prevents the production of accurate work, such as is desirable, especially for electrical purposes, &c. Furthermore, in the case of electric currents of high tension and of changes of temperature these aforesaid in- After the sulfate of lime l l W (calcium sulfate) has been separated as thoroughly as possible the liquid so obtaincd i. 1 solution of hv )O- clilorit-e of ma nesiuniis iiltered and Tli Qh concentratet orcxample, l'iyboiling to, say, a strength of about 20" to 4% Bauine. 1 prefer to use the hypt'fghl orlteof magnesium obtained as described above; but of course it may be obtained in any suitable manner. The liquid thus produced, as above described,

has then niiiied ivithiitve etable um,advantageously a '"Ttli, in a linely-divided condition. For example, ten parts, by weight,

of tragacantli or other suitable vegetable gum may be mixed with, say, two hundred parts, by weight, of the aforesaid liquid. After having carefully mixed these components the resulting composition (solution) is allowed to stand, (for, say, twelve to twentyfour hours,) so as to obtain a thick glue-like or gelatinous mass or body. Now in order to obtain a close combination, which is necessary for binding pulverizable bodies, the solution is advantageously driven through sieves of coarse and then tine meshes by means of a hard brush, and this continues until a thick slimy and milky substance has formed. The gelatinous mass produced as above has mixed therewith an a mes ilicate consisting.

- )otassium. otwc-n yvepar s, gy weight o f silicate at IO'TB 20 Baume mayhc mixed YfitlTt'w oT'iu'TdFeGaTj O ten pa tsgby weiglit, o sai gelatinous mass. According to the meet'm'mmmfiim articles to be prosulating-bodics break or crack very easilyand duced or results desired to be obtained a have numerous drawbacks. Insulating-bodies made of hard rubber or celluloid and the like, owing to the great danger of tire, cannot be employed in all cases. The present invention is designed to avoid these draw laacks and has many advantages and is as folows:

l l l 1 stronger or weaker solution of double silicate may be employed. 1301 example, I may advantagcously usca doifb'le' silicate of equal pa'itsfby weight, of sodic silicate of, say, 40: Baum and otassic silicate of, say, atO Baum. After the whole mass has been very carefully worked it is then (either alone or Chlorinated 1111*018 mixed with distilled J or rain wa er ant tie mixture allowed to mixed with a small percentage of the filling staiit or aw iile, and then the liquid is filtered or passed through asieve, and such liquid is then treated by sulfate of magnesia.

material, such as hereinafter specified) passed through a fine grinding-mill, from which it l emerges in a cream-like form or thoroughly te, preferably a such douTj i smooth and even consist-ence,fo1'niing a homolike-on ma nesium hypochlorit-e and l add gencous mass or body, and there is thus produced according to this invention a binding material which can then at once be used or kept forfuture usesuchmaterial(binding material) being suitable for making insulating articles and numerous other articles of various kinds from plastic composition as follows: As filling material or the material to be used in conjunction with said binding material it is advantageous to use fire-resisting substances in a pulverized form provided they be free from metallic ingredients. For example, 1 may employ chalk, lirne. -arbonate of bariunrsoaging an alka met on e s1 icate ant if desired,

fillin substances a non-hygroscopic binding material for binding pulverizable substances is obtained. The combined actionof the hypochlorite and the alkaline silicate oxidize the vegetable gum, and the resulting product forms a highly eflicient binding material.

An especial object of the present process is to obtain a binding material which is inodorous and may be manufactured by the cold way, which does not delay the binding of the pulverizable bodies, assumes a horn-like st rucstone power-r. kaolin. ma nesitr. light uTzlgnesia. baryt s. Liil\ w nte bolu (pipc-clav.)

slate, (slaw-powder.) quartz-noymcr. colF, 1

invention. Forexample.mineral,vegetable,or i

animal oils or fat may be employed prepared in any suitable way.

The binding material according to this j mixing magnesium hypochlorite with tragacanth and then adding an alkaline s1l1catc. subpresent invention may be used in any suitable f proportion with the filling material or materials according to the nature of the latter. For examplethere may be employed one part, by weight, of the binding materials hereinbcfore described with one to ten parts, by weight, of the aforesaid filling materials.

The mixing of the binding material and the filling material may be accomplished in any suitable mixer. such as a kneading-machine of the type known as \Yerner-Pliciderer mixing-machine. Afterhaving thoroughly mixed the filling material and binding material togcther, so as to obtain an intimate and even mixture thereof. the whole may be passed 1 through a suitable sieve.

The plastic compound thus produced is now ready for moldmg, rolling, beating, or compressing, or otherwisc forming into the desired article or i shape.

If desired, theafonesaid gelatinous mass may 1 tragacanth, gum-gutta, kutera um. and the stantially as described.

3. As a new article of manufacture, a nonhygroscopic material composed of an alkaline hydrate, an oxidized vegetable gum. and an alkaline silicate, substantially as described.

4:. As a new article of manufacture, a nonhygroscopic binding material comprising magnesium hydrate. oxidized gum tragacanth, and an alkaline silicate, substantially as described.

5. As a new article of manufar :ture. a nonhygroscopic binding material formed by mixing together magnesium hypochlorite. vegetable gum and an alkaline silicate, substantially as described.

6. As a new article of manufacture a nonhygroscopic binding material formed by mixing together magnesium hypochlorite. gumtragacanth and an alkaline silicate, substantially as described.

In witness whereof I have hereunto set my hand in presence of two witnesses.

LUDWIG ,1 HOT l5.

\Vitnesses:

HENRY BIRKBEET, FRANCIS \V. FRIGOUT.

lOO 

